Some bits about the service can be pretty astounding.

I used to live near the Central line. The station near home was open air and the exit was at the very end of the platform, so I always wanted to make sure I entered the train from the correct end. Service on the Central line is frequent enough (24 trains per hour off-peak), that, if I hopped off the train from the wrong end, the time it took me to walk the length of the platform was long enough for the next train to arrive.

Hah, the joys of optimising your morning commute on the Underground.

“If I stand here on the platform, then the door will open right in front of me, and I’ll be exactly at the exit of the next platform where I need to change…”